If you have to execute fixes on your Lifan LF50QGY then it is always a good plan to have access to a Workshop Manual to use as personal reference in the event that you want to know methods to take off a specific component for instance the Gearbox and match it again safely.
Lifan LF50QGY Workshop Manuals gives you specified diagnostic wisdom with regards to your automobile so if something is faulty it will help you identify what the situation is and easy methods to repair it. Then you are able to evaluate if this can be achieved by yourself or that the job is simply too big you can actually make a booking for your LF50QGY into a nearby repair garage.
Lifan LF50QGY manual